Title :
Microwave emission and scattering of layered foam based on Monte Carlo simulations of dense media
Author :
Chen, Dong ; Tsang, Leung ; Jin, Ya-Qiu
Author_Institution :
Fudan Univ., China
Abstract :
The foam covered ocean surface is treated as densely packed air bubbles coated with thin layers of seawater. Two geometric structures are considered. The first is spherical air bubbles in FCC structure. The second one is Lord Kelvin´s tetrakaidecahedron with close to minimal contact surface area. We apply Monte Carlo simulations of solutions of Maxwell´s equations to calculate the absorption, scattering and extinction coefficients of each layer at 10.8 GHz and 36.5 GHz. These quantities are then used in dense media radiative transfer theory to calculate the microwave emissivity. Results of emissivities for both horizontal polarization and vertical polarizations at 10.8 GHz and 36.5 GHz are illustrated.
Keywords :
Monte Carlo methods; electromagnetic wave scattering; emissivity; foams; microwave measurement; oceanographic techniques; remote sensing; 10.8 GHz; 36.5 GHz; FCC structure; Lord Kelvin tetrakaidecahedron; Maxwell equations; Monte Carlo simulations; absorption; contact surface area; dense media; extinction coefficients; foam covered ocean surface; geometric structures; horizontal polarization; layered foam scattering; microwave emission; microwave emissivity; passive microwave remote sensing; radiative transfer theory; seawater thin layers; spherical air bubbles; vertical polarization; wave breaking; Electromagnetic wave absorption; Extinction coefficients; FCC; Kelvin; Maxwell equations; Oceans; Polarization; Scattering; Sea surface; Surface treatment;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293768
